Characteristics.
- Other common names: Alloy 718, 718 HaynesMR, NicroferMR5219, AllvacMR718, AltempMR718.
- Nickel- chromium-molybdenum alloy, niobium added.
- Resistant to a wide variety of corrosive environments, pitting and corrosion cracking.
- High proof strength and creep rupture strength at high temperatures.
- Good mechanical properties and voltage.
- Resistant to aqueous corrosion and chloride ions stress-corrosion cracking.
- Easy to fabricate and weld.
- Used in a variety of industries such as marine processes, aerospace, nuclear, chemical, cryogenic storage tanks, valves, screws, etc.
Shape or Presentation
- Plate
- Bar
- Tube
- Tubing
- Flanges and Fittings
- Welding
Chemical Composition %
- Ni
- Fe
- Cr
- Cu
- Mo
- Nb
- C
- Mn
- P
- S
- Si
- Ti
- Al
- Co
- B
- 50.00 – 55.00
- Balance
- 17.00 – 21.00
- 0.30 max
- 2.80 – 3.30
- 4.75 – 5.50
- 0.08 max
- 0.35 max
- 0.015 max
- 0.015 max
- 0.35 max
- 0.65 – 1.15
- 0.20 – 080
- 1.00 max
- 0.006 max
*Inconel is a registered trademark of Special Metals Group Corporation.